Og da magneten er bygget op af 6 mindre magneter (se foto) med skiftende poler

You can use all kinds of magnets on a steel board

This red magnet can both be a plus sign or multiply sign

Small but strong fridge magnets

Power magnet, Skive 6x2 mm., Guld hyldeforkant Og da magneten er byggetNeodymium magnets Gilded magnets Diameter: 0. 6 cm Height: 0. 2 cm Strength: approx. 680 gr. These small, yet extremely strong magnets adhere to all magnetic surfaces, and they hold up many times their own weight. SPECIFICATIONS: Strength: approx. 680 gr. Material: NdFeB Magnetisation: N45 Gauss: 13200 13700 (1. 32 1. 37 T) MGOe: 43 45 Max. temperaturee: 80C Surface: gilded (Ni Cu Ni Au)